Compare House Extension & Renovation Costs

The Home Extension & Renovation Cost index

Brought to you by Cape Cod Australia

HERC Index

Source: Cape Cod Australia

March 2018

Home Extension & Renovation Cost Index

The March HERC Index shows an increase in the average cost of a Sydney home addition by 0.75%. This is actually the result of improvements to the accuracy of our formula, with resultant impacts to two of the model projects. You can find out more about our model projects and how the HERC Index formula works here.